Concast is a network layer service that provides many-to-one channels: multiple sources send messages toward one destination, and the network delivers a single "merged" copy to that destination. As we have defined it, the service is generic but the relationship between the sent and received messages can be customized for particular applications. In this paper, we describe the concast service and show how it can be implemented in a backward-compatible manner in the Internet. We describe its use to solve a problem that has eluded scalable end-system-only solutions: collecting feedback in multicast applications. Our preliminary analysis of concast's effectiveness shows that it provides significant benefits, even with partial deployment. We argue that concast has the characteristics needed for a programmable service to be widely accepted and deployed in the Internet.
|Number of pages||12|
|Journal||IEEE Journal on Selected Areas in Communications|
|State||Published - Mar 2001|
Bibliographical noteFunding Information:
Manuscript receivedApril 1, 2000; revised November 1, 2000. This work was supported in part by the National Science Foundation and EPSCoR Grant agreement EPS-9874764 and by the Defense Advanced Research Projects Agency (DARPA) and Air Force Research Laboratory under agreement Number F30602-99-1-0514.
- Active networks
- Scalable multicast
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering